The coffee selection program of the Instituto Agronomico at Campinas has been carried on in five experimental stations located in different ecological conditions. After identifying the best progenies in each station, a series of five trials was established to evaluate the adaptability of these selections to different localities. The present paper refers to a trial planted in the Experimental Station at Mococa in the northeastern part of the Stale of S. Paulo, with heavy clay soil (massapê-salmourão). The selected progenies of 'Mundo Nôvo' cultivar were superior to any other progenies studied in all characteristics considered: yield, vigor, and size and weight of flat seeds. Among them the progenies CP 387-17, MP 386-2, CP 379-19 and MP 376-4 revealed to be the most promising ones for high yield, vigor and seed size. The progeny CP 387-17 produced 250 per cent more clean coffee than the tester 'Tipica' commonly grown in the Mococa region at the beginning of the coffee selection project. Remarkable progress was observed in the selection of progenies by the pedigree method from the originai population of 'Mundo Nôvo'. The four best selections had an average production 100 percent higher than the original population. The results obtained confirm observations made for the same progenies grown in Campinas and Jau, in that the 'Mundo Nôvo' progenies have a very broad adaptation giving high yields in diverse ecological conditions.